Thlaspi arvense has its common name, field pennycress, from its coin-like seed pods.
Thlaspi arvense has its common name, field pennycress, from its coin-like seed pods. Small differences in DNA sequence contribute to heritable variations within a species, as do chemical modifications of DNA called epigenetic changes. In order to better understand the significance of such epigenetic changes for the evolution of plants, an international research team led by Professor Oliver Bossdorf from the Institute of Evolution and Ecology at the University of Tübingen investigated a large number of populations of Thlaspi arvense or field pennycress in a Europe-wide study. The researchers linked DNA sequences and environmental data from the places of origin with the epigenetic modifications of this wild plant. According to their results, a large part of the epigenetic variation is mainly determined by the DNA sequence. However, part of the epigenetic variation is strongly related to the climatic conditions of the place from which the plant originated. In agriculture, field pennycress could become important in the future as a winter cover crop and as a source of biofuel.
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